Solve the linear equation 3x-7y+10=0 and y-2x-3=0
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Therefore x = -1 and y = 1
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3x-7y=-10.......1
-2x+y=3......2
multiply eqation 2 by 7
-14x+7y=21.....3
add equation 1 and 3
3x-7y=-10
+-14x+7y=21
_____________
-11x. 11
x=-1
substitute value of x in equation 3
-14(-1)+7y=21
14+7y=21
7y=21-14
y=7/7
y=1
-2x+y=3......2
multiply eqation 2 by 7
-14x+7y=21.....3
add equation 1 and 3
3x-7y=-10
+-14x+7y=21
_____________
-11x. 11
x=-1
substitute value of x in equation 3
-14(-1)+7y=21
14+7y=21
7y=21-14
y=7/7
y=1
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